Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Prehnite from
Glockkaserkar, Ritterkopf massif, Rauris, Zell am See District, Salzburg, Austria


Classification
Species:Prehnite
Formula:Ca2Al2Si3O10(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Prehnite data
Locality Data:Click here to view Glockkaserkar, Ritterkopf massif, Rauris, Zell am See District, Salzburg, Austria
Data Identifiers
Mindat Occurrence Record ID:258372
Long-form Identifier:1:3:258372:3
GUID (UUID V4):0
References
Strasser, Albert (1989) Die Minerale Salzburgs. Albert Strasser. 348 pp.
 
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